#!/bin/bash
echo "---------- set -x ----------"
set -x
a=1; b=9
echo "current shell flags $-"
echo $a $b
set +x
echo "current shell flgas $-"
echo "---------- set -v ----------"
set -v
A=2; B=10
echo "current shell flgas $-"
echo $A $B
set +v
echo "current shell flgas $-"
echo "---------- set -xv ----------"
set -xv
a=1; b=9
echo "current shell flags $-"
echo $a $b
set +xv
echo "current shell flgas $-"
echo "---------- set -a ----------"
set -a
A=2; B=10
echo "current shell flgas $-"
echo $A $B
set +a
echo "current shell flgas $-"
echo "---------- set -o ----------"
set -o
echo "---------- set -k ----------"
set -k
abs=123
